CP2101-GMR Datasheet, PDF (1/20 Pages) Silicon Laboratories – Single-Chip USB to UART Bridge

CP2101
Single-Chip USB to UART Bridge
Single-Chip USB to UART Data Transfer
- Integrated USB Transceiver; No External Resistors
Required
- Integrated Clock; No External Crystal Required
- Integrated 512-Byte EEPROM for Vendor ID,
Product ID, Serial Number, Power Descriptor,
Release Number and Product Description Strings
- On-Chip Power-On Reset Circuit
- On-Chip Voltage Regulator: 3.3 V Output
USB Function Controller
- USB Specification 2.0 Compliant; Full Speed
(12 Mbps)
- USB suspend states supported via SUSPEND pins
Asynchronous Serial Data BUS (UART)
- All Handshaking and Modem Interface Signals
- Data Formats Supported:
• Data Bits: 8
• Stop Bits: 1
• Parity: Odd, Even, No Parity
- Baud Rates: 300 bps to 921.6 kbps
- 512 Byte Receive Buffer; 512 Byte Transmit Buffer
- Hardware or X-On / X-Off Handshaking Supported
- Event Character Support
Virtual COM Port Device Drivers
- Works with Existing COM Port PC Applications
- Royalty-Free Distribution License
- Windows Vista/XP/Server 2003/2000/98SE
- Mac OS-X/OS-9
- Linux 2.40
USBXpress™ Direct Driver Support
- Royalty-Free Distribution License
- Windows Vista/XP/Server 2003/2000
- Windows CE 6.0, 5.0, and 4.2
Example Applications
- Upgrade of RS-232 Legacy Devices to USB
- Cellular Phone USB Interface Cable
- PDA USB Interface Cable
- USB to RS-232 Serial Adapter
Supply Voltage
- Self-powered: 3.0 to 3.6 V
- USB Bus Powered: 4.0 to 5.25 V
Package
- Pb-free 28-pin QFN (5 x 5 mm)
Ordering Part Number
- CP2101-GM
Temperature Range: -40 to +85 °C
Note: The CP2101 is a mature product and is not rec-
ommended for new designs. The CP2102 is a pin and
software compatible alternative for the CP2101. The
CP2102 is recommended for all new designs.
7 _REGIN
6 _VDD
3 _GND
USB
CONNECTOR
VBUS ¹
D– ²
D+ ³
GND ⁴
8 _VBUS
5
D–
4
D+
D1 D2 D3
IN ^Voltage
Regulator
OUT
CP2101
3.3 V
48 MHz
Oscillator
USB
Transceiver
USB Function
Controller
512B
EEPROM
512B
TX
Buffer
512B
RX
Buffer
UART
VDD
RST
9
SUSPEND ¹²
SUSPEND ¹¹
RI
2
DCD
1
DTR
28
DSR
27
TXD
26
RXD
25
RTS
24
CTS
23
(to external circuitry
for USB suspend
states)
External RS-232
transceiver or
UART circuitry
Example System Diagram
Rev. 1.8 5/07
Copyright © 2007 by Silicon Laboratories
CP2101